超大量的更新 修复很多问题，gameplay特效初步

Assets/scripts/selectYourSongFirst/UI_SelectSong_EnterAnim.cs

@@ -1,6 +1,7 @@
 using System.Collections.Generic;
 using DG.Tweening;
 using UnityEngine;
+using UnityEngine.UI;
 
 public class UI_SelectSong_EnterAnim : MonoBehaviour
 {
@@ -20,6 +21,8 @@ public class UI_SelectSong_EnterAnim : MonoBehaviour
     [SerializeField] float slideX = 180f;
     [SerializeField] float slideY = 120f;
     [SerializeField] float bgScaleFrom = 1.06f;
+    [SerializeField] bool useUnscaledTime = true;
+    [SerializeField] bool ensureVisibleOnComplete = true;
 
     RectTransform root;
     RectTransform bg;
@@ -83,7 +86,7 @@ public class UI_SelectSong_EnterAnim : MonoBehaviour
             return;
         }
 
-        bg = bg != null ? bg : FindRect(root, "BG");
+        bg = bg != null ? bg : FindPreferredSelectSceneBg();
         leftDlc = leftDlc != null ? leftDlc : FindRect(root, "left_select_dlc");
         songScroll = songScroll != null ? songScroll : FindRect(root, "SongScrollView");
         rightInfos = rightInfos != null ? rightInfos : FindRect(root, "rightInfos");
@@ -130,6 +133,28 @@ public class UI_SelectSong_EnterAnim : MonoBehaviour
         return null;
     }
 
+    RectTransform FindPreferredSelectSceneBg()
+    {
+        // Prefer the scene root object named "bg" that owns a Canvas
+        // (the one shown in your hierarchy screenshot), not the legacy inactive "BG".
+        Transform[] all = Resources.FindObjectsOfTypeAll<Transform>();
+        for (int i = 0; i < all.Length; i++)
+        {
+            Transform t = all[i];
+            if (t == null) continue;
+            GameObject go = t.gameObject;
+            if (go == null || !go.scene.IsValid()) continue;
+            if (!string.Equals(t.name, "bg", System.StringComparison.OrdinalIgnoreCase)) continue;
+            if (go.GetComponent<Canvas>() == null) continue;
+            return t as RectTransform;
+        }
+
+        // Fallbacks for older scene hierarchy.
+        RectTransform fallback = FindRect(root, "BG");
+        if (fallback != null) return fallback;
+        return FindRect(root, "bg");
+    }
+
     void CacheBase(RectTransform rect)
     {
         if (rect == null)
@@ -196,7 +221,7 @@ public class UI_SelectSong_EnterAnim : MonoBehaviour
 
     void BuildSequence()
     {
-        enterSeq = DOTween.Sequence();
+        enterSeq = DOTween.Sequence().SetUpdate(useUnscaledTime);
         float t = delay;
 
         if (bg != null && bg.gameObject.activeInHierarchy)
@@ -204,11 +229,11 @@ public class UI_SelectSong_EnterAnim : MonoBehaviour
             CanvasGroup group = EnsureCanvasGroup(bg);
             if (group != null)
             {
-                enterSeq.Insert(t, group.DOFade(1f, panelTime).SetEase(ease));
+                enterSeq.Insert(t, group.DOFade(1f, panelTime).SetEase(ease).SetUpdate(useUnscaledTime));
             }
             if (baseScale.TryGetValue(bg, out Vector3 scale))
             {
-                enterSeq.Insert(t, bg.DOScale(scale, panelTime).SetEase(ease));
+                enterSeq.Insert(t, bg.DOScale(scale, panelTime).SetEase(ease).SetUpdate(useUnscaledTime));
             }
         }
 
@@ -229,6 +254,11 @@ public class UI_SelectSong_EnterAnim : MonoBehaviour
 
         InsertScale(enterDetail, t + 0.35f, buttonTime);
         InsertScale(quickEnter, t + 0.38f, buttonTime);
+
+        if (ensureVisibleOnComplete)
+        {
+            enterSeq.OnComplete(SnapAllToVisibleFinalState);
+        }
     }
 
     void InsertSlide(RectTransform rect, float at, float time)
@@ -240,12 +270,12 @@ public class UI_SelectSong_EnterAnim : MonoBehaviour
         CacheBase(rect);
         if (basePos.TryGetValue(rect, out Vector2 pos))
         {
-            enterSeq.Insert(at, rect.DOAnchorPos(pos, time).SetEase(ease));
+            enterSeq.Insert(at, rect.DOAnchorPos(pos, time).SetEase(ease).SetUpdate(useUnscaledTime));
         }
         CanvasGroup group = EnsureCanvasGroup(rect);
         if (group != null)
         {
-            enterSeq.Insert(at, group.DOFade(1f, time).SetEase(ease));
+            enterSeq.Insert(at, group.DOFade(1f, time).SetEase(ease).SetUpdate(useUnscaledTime));
         }
     }
 
@@ -258,12 +288,54 @@ public class UI_SelectSong_EnterAnim : MonoBehaviour
         CacheBase(rect);
         if (baseScale.TryGetValue(rect, out Vector3 scale))
         {
-            enterSeq.Insert(at, rect.DOScale(scale, time).SetEase(ease));
+            enterSeq.Insert(at, rect.DOScale(scale, time).SetEase(ease).SetUpdate(useUnscaledTime));
         }
         CanvasGroup group = EnsureCanvasGroup(rect);
         if (group != null)
         {
-            enterSeq.Insert(at, group.DOFade(1f, time).SetEase(ease));
+            enterSeq.Insert(at, group.DOFade(1f, time).SetEase(ease).SetUpdate(useUnscaledTime));
+        }
+    }
+
+    void SnapAllToVisibleFinalState()
+    {
+        SnapVisible(bg, applyScale: true);
+        SnapVisible(leftDlc, applyScale: false);
+        SnapVisible(songScroll, applyScale: false);
+        SnapVisible(rightInfos, applyScale: false);
+        SnapVisible(songTitle, applyScale: false);
+        SnapVisible(dlcTitle, applyScale: false);
+        SnapVisible(quickEnter, applyScale: true);
+        SnapVisible(enterDetail, applyScale: true);
+
+        for (int i = 0; i < difficultyItems.Count; i++)
+        {
+            SnapVisible(difficultyItems[i], applyScale: false);
+        }
+    }
+
+    void SnapVisible(RectTransform rect, bool applyScale)
+    {
+        if (rect == null) return;
+        if (!rect.gameObject.activeSelf) rect.gameObject.SetActive(true);
+
+        CacheBase(rect);
+        if (basePos.TryGetValue(rect, out Vector2 pos))
+        {
+            rect.anchoredPosition = pos;
+        }
+
+        if (applyScale && baseScale.TryGetValue(rect, out Vector3 scale))
+        {
+            rect.localScale = scale;
+        }
+
+        CanvasGroup group = EnsureCanvasGroup(rect);
+        if (group != null)
+        {
+            group.alpha = 1f;
+            group.interactable = true;
+            group.blocksRaycasts = true;
         }
     }